Bosnia's State Presidency on Tuesday finally nominated a prime minister to end an eight-month political stalemate but warned that the crisis would be exacerbated if the candidate is rejected, AFP reported.

The chairman of the rotating three-man Presidency, Bosnian Serb Nebojsa Radmanovic, announced the nomination of Bosnian Croat Slavo Kukic but added that the candidate was unlikely to win the backing of the parliament.

"If it happens that in parliament there is no confirmation for this candidate chosen by the presidency then we are in a much deeper political crisis than we thought," he told journalists, adding that he was unhappy with the situation.

"It is very likely that this candidate fails to win support in the parliament so that the presidency will have to deliver a new name within eight days after the vote in the parliament," Radmanovic warned.

He explained that while his party, the hardline Bosnian Serb SNSD, welcomed the idea of a Bosnian Croat prime minister they would support only the candidate proposed by the hardline Bosnian Croat HDZ parties, Borjana Kristo.

The SNSD holds an absolute majority in the Bosnian Serb part of the central parliament. Under Bosnia's complex political system a prime minister can only be voted in with a majority of votes in both parts of the central parliament: the Bosnian Serb entity's and the Muslim Croat Federation lawmakers.